Burlfer



' w. F. STEWART June 10 BURNER Filed Jan.

Patented June 10, 1924.

WILLIAM F. STEWART, OF ST.. LOUIS, MISSOURI.

BURNER.

Application filed January 20,1923. Serial No. 818,858.

T 0 all whom it may con/writ Be it known that I, VlLLL-UI F. S'rmvlurr. a citizen of the United States. and a resident of the city of St. Louis and State of Missouri, have invented a new and useful im- .provement in Burners, of which the followmg is a specification.

My invention relates to gas burners and has for its irincipal objects to devise a burner that will '0 free from the danger of back firing, that will have a plurality of flames whose position may be varied and that is simple in construction and easy to manufacture.

The invention consists principally in pro riding the burner supply'pi ie with a pinrality of burner tips arranged in pairs, each tip having a gas outlet and the two tips of each pair being disposed so that the streams of gas therefrom converge and in disposing a bottom plate beneath said hurners, said plate having an opening beneath each pair of burners. The invention further consists in the burner hereina fter described and claiuu-d.

In the accompanying drawing.

Fig. 1 is a top plan view of a burner rmbodying my invention. and i Fig. 2 is a sectional view on the line 2-i in Fig. 1.

The burner ring l 'is provided with a bottom plate 11 that is secured to the side walls 12 of a heater, thus making a closed combustion chamber. The burner ring is provided with a threaded opening 2 adapted to receive the threaded end of a fuel supply pipe.

The burner pipe is provided along its top with a plurality of holes in each of which is disposed the end of a hollow burner tip 5, preferably of metal. Through the closed end of each tip 5 extends an inclined hole 7 that opens into the central bore of the burner tip which communicates with the interior of the burner pipe. In practice the hole is inclined at an angle of about forty-five degrees.

The burner tips are preferably arranged in pairs and the two burner tips of each pair are dis osed so that straight lines drawn throng 1 the respective openings thereof would converge. Thus, the streams of gas 8 coming from the two burner tips converge as indicated in Fig. 1 and unite to form a single flame 9. Thqstreams strikin against each other flatten out, crosswise o the direction in which they were flowing and the united stream flows in a substantially more, i

vertical direction. The flow of the streams of gas creates a flow of air, so that sufficient air is mixed with the gas to form. a proper heating flame.

The burner tips may be turned and their angular position changed so that the point at which the streams of gas therefrom meet varies and, consequently, the location and disposition of the flame may be ad'usted. As shown in Fig. 1, the openings of most of the burn r tips are disposed along a circle having the center of the burner pipe as a center. Thus the flame of each pair of burner tips will be disposed directly above the burner pipe, extending crosswise thereof. By adjusting the burner-tips of any pair, the flame of such pair of tips may he moved inward'or outward with reference to the burner pipe. Thus, the series of flames may be varied in numerous ways. They may be arranged in a circle smaller than the burner pipe, of the same size as the burner pipe,

or larger than the burner pipe. or they may be arranged irregularly, some being disposed directly above the burner pipe and others being to one side or the. other thereof.

The burner ring 1 is preferably indented or reeessed between the two tips 5 ofeach pair, and at the bottom of each of these rercsses 13. the burner plate is provided with a hole. 14. Each hole is preferably provided with a removable bushing 15 or nut, so that the size of the opening may be adjusted.

The angular position of the burner tips is preferably adjusted so that the flame of each pair of tips is disposed directly over one of the openings in the bottom plate. Thus a draft of air is supplied directly to the flame. If desired. however. the tips may inadjusted so that the flames are moved away from the holes. and still suflirient air will he drawn through the holes to provide the oxygen necessary for the ihllIu-H.

The lll'l'elll described burner tips are simple and 'nexpensive to manufacture, and if a mists! e is made in the size, location or angle of -nclination of the fuel opening, the resulting loss is slight. whereas if the openings wen made dirertlv in the burner pipe. the whollhurner would have to be scrapped if one hi 1e were improperly made. Furtheris ver difficult to make burner pipes of even t ickness throughout and to locate openings accurately therein. In the present burner, it is not. necessary that the burner pipe bevdlfiirately formed, and as above stated, it is a comparatively simple matter to form the burner tips accurately.

The 'adj ustability of the several flames of the burner is an important advantage of the present construction. Obviously, numerous changes may be made without departing from the inven tion; and I do not wish to be limited to the precise construction shown.

What I claim is:

1. A burner ring connected with a fuel 7 supply, a plurality of pairs of burner tips mounted in holes provided therefor in said burner ring, each of said tips having a fuel outlet, the tips of a pair being disposed so that the streams of fuel therefrom converge,

a bottom plate and side Walls secured to said plate, said late having a plurality of o lungs, each isposed beneat the ame -o a pair of burner tips.

2. A b'urner ring connected witha fuel. supply, a plurality of pairs of burner tips mounted in holes provided therefor in said burneering, each of said tips having a fuel outlet, the tips of a pair being disposed so that the streams of fuel therefrom converge, a bottom plate andside walls secured to said plate, said plate having a plurality of openings, each'disposed beneath the flame of a pair of burner tips, and means for adjusting the size of the openin 3. A burner ring connecte with a fuel supply, a plurality of pairs of burner tips mount-ed in holes provided therefor in said burner ring, each of said tips having a fuel outlet, the tips of a air being disposed s that the streams-0f f iiel therefrom converge, a bottom plate integral with said burner ring and side walls secured to said plate, said plate having a plurality of openmgs, each disposed beneath the flame of a'paii' of burner tips.

Signed at St. Louis, Missouri, this 17th day of Januar 1923. I

llILLIAM F. STEWART. 

